Infinity Gauntlet

If you control an Infinity Stone equip to Infinity Gauntlet, (properties remain and if Infinity Gauntlet is equipped the Stones properties affect the creature.)
Infinity Stones cost {2} less to summon.
If you control all Infinity Stones destroy half of all opponent creatures and half of the creatures you control.
{5}: Equip target creature, creature gets +2/+2.